Content for TR 23.700-45 Word version: 19.0.0
1 Scope
2 References
3 Definitions of terms and abbreviations
3.1 Terms
3.2 Abbreviations
4 Architectural Assumptions and Requirements
4.1 Architectural Assumptions
4.2 Architectural Requirements
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1 Scope p. 7
The present document will study and identify potential enhancements for supporting 5G NR Femto deployment. The study will investigate potential enhancements in the following areas:
- How to enable interworking between CAG and CSG cells.
- Study whether and how to support enabling the provisioning of subscribers allowed to access CAG cell and to manage access control by the CAG owner or an authorized administrator.
2 References p. 7
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 23.501: "System Architecture for the 5G System; Stage 2".
[3]
TS 23.502: "Procedures for the 5G system; Stage 2".
[4]
TS 23.503: "Policy and charging control framework for the 5G System (5GS); Stage 2".
[5]
TS 23.401: "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access".
[6]
TS 38.300: "NR; NR and NG-RAN Overall description; Stage-2".
[7]
TS 36.300: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2".
[8]
TS 38.413: "NG-RAN; NG Application Protocol (NGAP)".
[9]
TS 33.501: "Security architecture and procedures for 5G System".
[10]
TS 36.413: "Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 Application Protocol (S1AP)".
[11]
TS 23.122: "Non-Access-Stratum (NAS) functions related to Mobile Station in idle mode".
3 Definitions of terms and abbreviations p. 7
3.1 Terms p. 7
For the purposes of the present document, the terms given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
3.2 Abbreviations p. 8
4 Architectural Assumptions and Requirements p. 8
4.1 Architectural Assumptions p. 8
The architecture for support of 5G NR Femto shall be based on the following architectural assumptions:
- the 5GS defined as part of Rel-18 is used as basis for further potential enhancements;
- the need for potential architecture enhancements for supporting 5G NR Femto deployments depends on the outcome of RAN WG3 study;
- It is expected that MME, E-UTRAN and NG-RAN impacts are avoided;
- It is assumed that the existing CAG concept defined for PNI-NPN is re-used for Femto access control without impacts to PNI-NPN.
4.2 Architectural Requirements p. 8
The solutions should build on 5GS architectural principles as defined in TS 23.501.
